The goddess of dawn, Eos kidnapped Cephalus. They became lovers. But Cephalus returned to Procris. Eos disparaged remarks about his wife's fidelity. Once reunited with Procris, Cephalus tested her by returning from the hunt in disguise, and managing to seduce her. In shame Procris fled to the forest, to hunt with Artemis. In returning and reconciling, Procris brought an inerrant javelin that never missed its mark as gift.
Procris then conceived doubts about her husband, who left his house and climbed to a mountaintop. She climbed to where he was to spy on him. Cephalus, hearing a stirring in the brush, threw the never-erring javelin in the direction of the sound – and Procris was impaled. After the death of Procris, Cephalus went into exile.